Fiocchi Range Dynamics Ammunition 5.7x28mm FN Subsonic 62 Grain Full Metal Jacket

The Fiocchi Range Dynamics 5.7x28mm FN subsonic 62 grain FMJ ammo is built for shooters who want clean, reliable performance from one of the most efficient defensive and recreational cartridges available. Whether you're running a suppressed FN Five-seveN or another 5.7x28 platform, these subsonic rounds deliver the low-noise, low-recoil characteristics that make this caliber so appealing for controlled shooting environments. At 62 grains, the full metal jacket bullet is engineered for consistent feeding, minimal fouling, and straightforward performance downrange—no exotic construction, no surprises.

Fiocchi has built its reputation on dependable ammo for serious shooters and casual plinking alike, and the Range Dynamics line reflects that philosophy. Each box contains 50 rounds, making it easy to stock up for a range session or keep a supply on hand. The subsonic velocity profile means you get the ballistic and noise reduction benefits without sacrificing the reliability that centerfire shooters expect. This is the kind of ammunition that works the same way every time you load it.

If you shoot suppressed, you'll appreciate ammunition designed from the ground up for that purpose. If you don't run a can, subsonic rounds still offer a gentler recoil impulse and lower signature than standard loads—useful for extended range sessions, hearing conservation, or just plain comfort. The FMJ construction keeps things simple: feed reliability, predictable ballistics, and easy cleanup after a day of shooting.

Key Features

• 62 grain full metal jacket projectile for reliable feeding and consistent performance
• Subsonic velocity specification for reduced noise and recoil impulse
• 50 rounds per box for convenient range stocking
• Centerfire reliability you can count on for suppressed and unsuppressed shooting

Specifications

Frequently Asked Questions

What firearms does 5.7x28mm ammo work in?

The 5.7x28mm FN cartridge was developed for and is primarily used in the FN Five-seveN handgun. Always verify that your specific firearm is chambered in 5.7x28mm before purchasing ammunition, as this is a specialized cartridge not common in other platforms.

Is subsonic ammo quieter when I shoot it without a suppressor?

Subsonic ammunition is optimized for suppressed use and delivers its primary benefits—reduced noise signature and lower recoil—when paired with a suppressor. While it will still function in unsuppressed firearms, you won't experience the same noise reduction as you would with a suppressor installed.

What does subsonic mean?

Subsonic ammunition is loaded to velocities below the speed of sound (roughly 1,125 feet per second at sea level). This prevents the supersonic "crack" created by a bullet breaking the sound barrier, making suppressed shooting significantly quieter. The Fiocchi Range Dynamics 5.7x28mm subsonic is engineered with this profile in mind.

How many rounds are in a box of Fiocchi Range Dynamics 5.7x28mm?

Each box contains 50 rounds, packaged for easy handling and storage.